require "abstract_unit" require "active_support/key_generator" class FlashTest < ActionController::TestCase class TestController < ActionController::Base def set_flash flash["that"] = "hello" render inline: "hello" end def set_flash_now flash.now["that"] = "hello" flash.now["foo"] ||= "bar" flash.now["foo"] ||= "err" @flashy = flash.now["that"] @flash_copy = {}.update flash render inline: "hello" end def attempt_to_use_flash_now @flash_copy = {}.update flash @flashy = flash["that"] render inline: "hello" end def use_flash @flash_copy = {}.update flash @flashy = flash["that"] render inline: "hello" end def use_flash_and_keep_it @flash_copy = {}.update flash @flashy = flash["that"] flash.keep render inline: "hello" end def use_flash_and_update_it flash.update("this" => "hello again") @flash_copy = {}.update flash render inline: "hello" end def use_flash_after_reset_session flash["that"] = "hello" @flashy_that = flash["that"] reset_session @flashy_that_reset = flash["that"] flash["this"] = "good-bye" @flashy_this = flash["this"] render inline: "hello" end # methods for test_sweep_after_halted_action_chain before_action :halt_and_redir, only: "filter_halting_action" def std_action @flash_copy = {}.update(flash) head :ok end def filter_halting_action @flash_copy = {}.update(flash) end def halt_and_redir flash["foo"] = "bar" redirect_to action: "std_action" @flash_copy = {}.update(flash) end def redirect_with_alert redirect_to "/nowhere", alert: "Beware the nowheres!" end def redirect_with_notice redirect_to "/somewhere", notice: "Good luck in the somewheres!" end def render_with_flash_now_alert flash.now.alert = "Beware the nowheres now!" render inline: "hello" end def render_with_flash_now_notice flash.now.notice = "Good luck in the somewheres now!" render inline: "hello" end def redirect_with_other_flashes redirect_to "/wonderland", flash: { joyride: "Horses!" } end def redirect_with_foo_flash redirect_to "/wonderland", foo: "for great justice" end end tests TestController def test_flash get :set_flash get :use_flash assert_equal "hello", @controller.instance_variable_get(:@flash_copy)["that"] assert_equal "hello", @controller.instance_variable_get(:@flashy) get :use_flash assert_nil @controller.instance_variable_get(:@flash_copy)["that"], "On second flash" end def test_keep_flash get :set_flash get :use_flash_and_keep_it assert_equal "hello", @controller.instance_variable_get(:@flash_copy)["that"] assert_equal "hello", @controller.instance_variable_get(:@flashy) get :use_flash assert_equal "hello", @controller.instance_variable_get(:@flash_copy)["that"], "On second flash" get :use_flash assert_nil @controller.instance_variable_get(:@flash_copy)["that"], "On third flash" end def test_flash_now get :set_flash_now assert_equal "hello", @controller.instance_variable_get(:@flash_copy)["that"] assert_equal "bar", @controller.instance_variable_get(:@flash_copy)["foo"] assert_equal "hello", @controller.instance_variable_get(:@flashy) get :attempt_to_use_flash_now assert_nil @controller.instance_variable_get(:@flash_copy)["that"] assert_nil @controller.instance_variable_get(:@flash_copy)["foo"] assert_nil @controller.instance_variable_get(:@flashy) end def test_update_flash get :set_flash get :use_flash_and_update_it assert_equal "hello", @controller.instance_variable_get(:@flash_copy)["that"] assert_equal "hello again", @controller.instance_variable_get(:@flash_copy)["this"] get :use_flash assert_nil @controller.instance_variable_get(:@flash_copy)["that"], "On second flash" assert_equal "hello again", @controller.instance_variable_get(:@flash_copy)["this"], "On second flash" end def test_flash_after_reset_session get :use_flash_after_reset_session assert_equal "hello", @controller.instance_variable_get(:@flashy_that) assert_equal "good-bye", @controller.instance_variable_get(:@flashy_this) assert_nil @controller.instance_variable_get(:@flashy_that_reset) end def test_does_not_set_the_session_if_the_flash_is_empty get :std_action assert_nil session["flash"] end def test_sweep_after_halted_action_chain get :std_action assert_nil @controller.instance_variable_get(:@flash_copy)["foo"] get :filter_halting_action assert_equal "bar", @controller.instance_variable_get(:@flash_copy)["foo"] get :std_action # follow redirection assert_equal "bar", @controller.instance_variable_get(:@flash_copy)["foo"] get :std_action assert_nil @controller.instance_variable_get(:@flash_copy)["foo"] end def test_keep_and_discard_return_values flash = ActionDispatch::Flash::FlashHash.new flash.update(foo: :foo_indeed, bar: :bar_indeed) assert_equal(:foo_indeed, flash.discard(:foo)) # valid key passed assert_nil flash.discard(:unknown) # non existent key passed assert_equal({ "foo" => :foo_indeed, "bar" => :bar_indeed }, flash.discard().to_hash) # nothing passed assert_equal({ "foo" => :foo_indeed, "bar" => :bar_indeed }, flash.discard(nil).to_hash) # nothing passed assert_equal(:foo_indeed, flash.keep(:foo)) # valid key passed assert_nil flash.keep(:unknown) # non existent key passed assert_equal({ "foo" => :foo_indeed, "bar" => :bar_indeed }, flash.keep().to_hash) # nothing passed assert_equal({ "foo" => :foo_indeed, "bar" => :bar_indeed }, flash.keep(nil).to_hash) # nothing passed end def test_redirect_to_with_alert get :redirect_with_alert assert_equal "Beware the nowheres!", @controller.send(:flash)[:alert] end def test_redirect_to_with_notice get :redirect_with_notice assert_equal "Good luck in the somewheres!", @controller.send(:flash)[:notice] end def test_render_with_flash_now_alert get :render_with_flash_now_alert assert_equal "Beware the nowheres now!", @controller.send(:flash)[:alert] end def test_render_with_flash_now_notice get :render_with_flash_now_notice assert_equal "Good luck in the somewheres now!", @controller.send(:flash)[:notice] end def test_redirect_to_with_other_flashes get :redirect_with_other_flashes assert_equal "Horses!", @controller.send(:flash)[:joyride] end def test_redirect_to_with_adding_flash_types original_controller = @controller test_controller_with_flash_type_foo = Class.new(TestController) do add_flash_types :foo end @controller = test_controller_with_flash_type_foo.new get :redirect_with_foo_flash assert_equal "for great justice", @controller.send(:flash)[:foo] ensure @controller = original_controller end def test_add_flash_type_to_subclasses test_controller_with_flash_type_foo = Class.new(TestController) do add_flash_types :foo end subclass_controller_with_no_flash_type = Class.new(test_controller_with_flash_type_foo) assert subclass_controller_with_no_flash_type._flash_types.include?(:foo) end def test_does_not_add_flash_type_to_parent_class Class.new(TestController) do add_flash_types :bar end assert_not TestController._flash_types.include?(:bar) end end class FlashIntegrationTest < ActionDispatch::IntegrationTest SessionKey = "_myapp_session" Generator = ActiveSupport::LegacyKeyGenerator.new("b3c631c314c0bbca50c1b2843150fe33") class TestController < ActionController::Base add_flash_types :bar def set_flash flash["that"] = "hello" head :ok end def set_flash_now flash.now["that"] = "hello" head :ok end def use_flash render inline: "flash: #{flash["that"]}" end def set_bar flash[:bar] = "for great justice" head :ok end def set_flash_optionally flash.now.notice = params[:flash] if stale? etag: "abe" render inline: "maybe flash" end end end def test_flash with_test_route_set do get "/set_flash" assert_response :success assert_equal "hello", @request.flash["that"] get "/use_flash" assert_response :success assert_equal "flash: hello", @response.body end end def test_just_using_flash_does_not_stream_a_cookie_back with_test_route_set do get "/use_flash" assert_response :success assert_nil @response.headers["Set-Cookie"] assert_equal "flash: ", @response.body end end def test_setting_flash_does_not_raise_in_following_requests with_test_route_set do env = { "action_dispatch.request.flash_hash" => ActionDispatch::Flash::FlashHash.new } get "/set_flash", env: env get "/set_flash", env: env end end def test_setting_flash_now_does_not_raise_in_following_requests with_test_route_set do env = { "action_dispatch.request.flash_hash" => ActionDispatch::Flash::FlashHash.new } get "/set_flash_now", env: env get "/set_flash_now", env: env end end def test_added_flash_types_method with_test_route_set do get "/set_bar" assert_response :success assert_equal "for great justice", @controller.bar end end def test_flash_factored_into_etag with_test_route_set do get "/set_flash_optionally" no_flash_etag = response.etag get "/set_flash_optionally", params: { flash: "hello!" } hello_flash_etag = response.etag assert_not_equal no_flash_etag, hello_flash_etag get "/set_flash_optionally", params: { flash: "hello!" } another_hello_flash_etag = response.etag assert_equal another_hello_flash_etag, hello_flash_etag get "/set_flash_optionally", params: { flash: "goodbye!" } goodbye_flash_etag = response.etag assert_not_equal another_hello_flash_etag, goodbye_flash_etag end end private # Overwrite get to send SessionSecret in env hash def get(path, *args) args[0] ||= {} args[0][:env] ||= {} args[0][:env]["action_dispatch.key_generator"] ||= Generator super(path, *args) end def with_test_route_set with_routing do |set| set.draw do ActiveSupport::Deprecation.silence do get ":action", to: FlashIntegrationTest::TestController end end @app = self.class.build_app(set) do |middleware| middleware.use ActionDispatch::Session::CookieStore, key: SessionKey middleware.use ActionDispatch::Flash middleware.delete ActionDispatch::ShowExceptions end yield end end end